Fire extinguisher ball



FIG. 1 is a perspective view of a fire extinguisher ball;

FIG. 2 is a front view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a right-side view thereof;

FIG. 5 is a left-side view thereof;

FIG. 6 is a rear view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a cross-sectional view thereof taken along lines 8-8 in FIG. 2.

The broken lines depict environmental subject matter only and form no part of the claimed design. 

CLAIM The ornamental design for a fire extinguisher ball, as shown and described. 